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Poly(isosorbide carbonate): A ‘green’ char forming agent in polybutylene succinate intumescent formulation
Abstract : A new flame retardant (FR) intumescent system for polybutylene succinate (PBS) was developed using poly(isosorbide carbonate) (PIC), a bio-based polymer, as a
‘green’ char forming agent. The use of this charring agent in PBS/ammonium polyphosphate (APP) permits to obtain better efficiency than PBS/APP alone for mass
loss cone calorimetry (MLC) test: pHRR was decreased by 24% vs 19%, THR was decreased by 48% vs 25% and the yield of residue was increased to 44% vs 23%
respectively. According to the temperature measured by thermocouples embedded in the sample, the char formed for PBS/PIC/APP showed a better heat barrier
effect than that of PBS/APP: under the char, the temperature and the heating rate of PBS/PIC/APP is significantly lower than those of PBS/APP. Obvious differences
of the chemical composition and the morphology of the chars highlight that the good results obtained for PBS/PIC/APP were governed by a glass type char formed
during the MLC test.
Littérature citée [39 références]
https://hal.univ-lille.fr/hal-02508857
Contributeur : Lilloa Université de Lille Connectez-vous pour contacter le contributeur
Soumis le : lundi 16 mars 2020 - 10:16:49
Dernière modification le : mardi 19 octobre 2021 - 22:57:00
Contributeur : Lilloa Université de Lille Connectez-vous pour contacter le contributeur
Soumis le : lundi 16 mars 2020 - 10:16:49
Dernière modification le : mardi 19 octobre 2021 - 22:57:00
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